S54 Dyno Database

[///MBan]

Car: Australian (right hand drive, Euro-spec) E86 Z4M Coupe, 28,000km for 'stage 1' and 40,000km by the time I got to ‘stage 3’.

Chart 1: stock versus ‘stage 1’ of Supersprint V1 stepped headers and cat’d s-pipe and a tune by Severn which included data logging on the street and multiple revisions (this is the sixth iteration of the tune). Note that the V1 headers do not clear the steering shaft for RHD cars, so the workshop modified them to fit. Not sure how much worse they are after modification, but they did still make more power high in the rev range than the already very nice Euro-spec headers, even without a tune.

More description here:
https://www.zpost.com/forums/showthread.php?t=1816109



Chart 2: re-baseline dyno of stage 1 vs ‘stage 2’, which was the addition of SS x-pipe, Powerloop mufflers and an Eventuri intake. No re-tune for stage 2.

More description here:
https://www.zpost.com/forums/showthread.php?t=1868864



Chart 3: re-baseline of stage 2 but with the SS x-pipe removed (the rasp and drone were too much for me), the addition of the Karbonius OE style plenum and heavier wheels (BBS RG-Rs, which are about 1kg heavier each than the Advans I had on for the previous dyno runs) versus Karbonius CSL ‘race’ intake and Severn alpha-n tune based on quite a lot of data logging on the street and fine-tuning on the dyno (exhaust mods the same as stage 2).

I changed dynos for these runs simply because it was closer to where I live. Also, I had to superimpose the revs x-axis from a different chart, so it looks a bit funny.

More description here:
https://www.zpost.com/forums/showthread.php?t=2100583



Adding it all up results in about 17% power gain versus stock – see the summary table below. I have to say I’m tempted to do a cam upgrade but the cost is really high and I haven’t found any dyno charts showing the change just from 280/272 camshafts (happy to be corrected if someone can point me in the right direction). I have seen a dyno for 288/280 cams, but the gains were only from around 6,800rpm and I would really want power and torque increases lower than that or I would never notice. I'd love to see a dyno chart showing the change from 280/272 cams alone if anyone has one to share.

[StrangeC]

Looking for feedback on this run:

• Trace looks lumpy 4500-5500 vs other smooth traces here, but car seems to run fine.
• Power tapers off at 7000RPM

I always felt Kassel 'phoned it in' during the remote dyno tuning. I was renting dyno time and Kassel took a loooong time between runs to get back to the tuner because they were busy with other customers...which got.. expensive. Does this all look normal to you?

S54
Rebuilt S54 in E36 chassis
Cat 280/272 cams
Stepped headers
E46 Section 2 w added resonator mid pipe
E46 Section 3 with Borla thru X muffler exhaust
Z3 Airbox



Thanks.

[davidinnyc]

Nice. I'll be running close to the same setup except a full SS 63.5MM headers-to-exhaust (Dinan Section 3). Excited to see how it performs before cams.

[marksae]

2004 E46 M3 - 169k miles
Karbonius CSL airbox w/ carbon snorkel (Stock CSL IAT in original location)
Euro Headers and Section 1
Supersprint Race Section 3
Kassel Performance MSS54HP Full CSL hardware/firmware conversion
Kassel Performance ECU tune
Kassel Performance MAP sensor kit
91 octane

Recent Maintenance:
Rebuilt VANOS w/ Beisan exhaust hub
Rod bearings replaced with ACL bearings
New o2 sensors and spark plugs

345whp, 271wtq - Mustang Dyno

[gashby]

03 e46 m3
112k miles/ roughly 20k on new block
HPF turbo
mods besides that unknown
currently looking at ecus/tunes because car is running rough
Cant find anyone to tune the AEM ecu

[bigjae46]

Nice! I was expecting a fireball to shoot out the exhaust

How many miles on the engine?

About 101k miles on the motor, not the original. 8k old plugs, sensors, and stuff. Only thing relatively new are the cam sensors.

It used with the Evolve tune and the Martyn ECU tool but I think the PCS tune eliminated that.

[Slideways]

325whp/257tq

Megan headers (swaintech coated)
BW race with straight section 2
Injen intake
Paul Claude tune

I’m really surprised, was expecting lower. This kicks me out of NASA TT4. This actually kind of screws me because I setup the car with ballast. Now I need to un-setup the car.

Probably can get more since the car was on the edge of overheating.

Nice! I was expecting a fireball to shoot out the exhaust

How many miles on the engine?

[bigjae46]

325whp/257tq

Megan headers (swaintech coated)
BW race with straight section 2
Injen intake
Paul Claude tune

I’m really surprised, was expecting lower. This kicks me out of NASA TT4. This actually kind of screws me because I setup the car with ballast. Now I need to un-setup the car.

Probably can get more since the car was on the edge of overheating.

[EthanolTurbo]

How did the dyno session go?

Badly. Wasn't able to get any good charts because had a spark issue and the car misfired on the dyno. Went home and put in new coils and plugs, car runs super strong and smooth. HTE says the tune is done and no need to touch it up so I guess I have to schedule another hour of dyno time if we want meaningful numbers.

Honestly, I am pretty disappointed and this is why I told someone else in another thread to ALWAYS do coils and plugs before a dyno day/tune. I would like to go back but feel like HTE should continue tuning it. Anri said that perhaps HTE loaded up a full power tune and it's at 100%.

I also would like to Dragy the car and get 60-130 info + 1/4 mile trap speed to see where it's at.

[duracellttu]

Dyno day tomorrow. This build has taken me over a year and a half since my last dyno. Feels like forever.

Here's what I did to prepare:

New o2 sensors
Full valve job
ICV cleaned

Crossing my fingers for good results and more power over the street tune we just did. Car feels really good, feels as fast or faster than my E90 M3 slicktop with lightweight wheels, intake, exhaust and E85 tune (cats still on it). Should be coldish too, 50-60F.

How did the dyno session go?

[OldRanger]

Hopped on the dyno for some tuning. 2005 with 167K or so on the clock. Every engine sensor, VANOS rebuild, Valve adjustment, fuel pump, filter and regulator over the past year or so. New OE coils and plugs and upstream O2s were the final touch.

• Turner CSL Style Intake with IAT in plenum
• Megan Racing Headers
• OEM Section 1 and 2
• SS Race Muffler
• Epic
• 93 Octane
• OEM 19’s and 3.62 gears

Weather was 28F and dry. So cold, we didn’t want to deal with fans adding air pressure at the intake.

SAE smoothing: 313hp @ 8,200; torque was 243 at 5,200

Driveability is as good or better than stock, even partial throttle.

[BMWfanz]

Dyno day tomorrow. This build has taken me over a year and a half since my last dyno. Feels like forever.

Here's what I did to prepare:

New o2 sensors
Full valve job
ICV cleaned

Crossing my fingers for good results and more power over the street tune we just did. Car feels really good, feels as fast or faster than my E90 M3 slicktop with lightweight wheels, intake, exhaust and E85 tune (cats still on it). Should be coldish too, 50-60F.

spec?

[EthanolTurbo]

Dyno day tomorrow. This build has taken me over a year and a half since my last dyno. Feels like forever.

Here's what I did to prepare:

New o2 sensors
Full valve job
ICV cleaned

Crossing my fingers for good results and more power over the street tune we just did. Car feels really good, feels as fast or faster than my E90 M3 slicktop with lightweight wheels, intake, exhaust and E85 tune (cats still on it). Should be coldish too, 50-60F.

[bimmerfan08]

30 HP from headers and a tune is solid. Just picked up a set of Megans.

Indeed. For ~$800, these motors can pick up ~11% more HP. On a dollar/HP basis, catless headers and a tune are probably the most cost-efficient mods for increasing power.

[ZHLPR]

I think I previously posted these files on M3forum but don't see my dyno graphs on this forum.

Stock motor on 7-19-2019. This was my baseline. Mileage: 164,439.



Modified motor on 7-10-20. Mods include Megan catless headers, 200 cell cats, and an HTE tune. Mileage: 167,202.

30 HP from headers and a tune is solid. Just picked up a set of Megans.